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| H2O2 주입과 온도변화가 열적 전처리 후 발생 슬러리의 CDOC 유기탄소분율에 미치는 영향평가 |
| 김희중1,3, 김태경1, 김연권2 |
1한수테크니칼서비스 기술연구소
2K-water연구원
3성균관대학교 건설환경시스템공학과 |
| Effect of H2O2 Injection and Temperature Changing on the Organic Carbon Fraction in Chromatogram Dissolved Organic Carbon (CDOC) from Thermal Pretreatment |
| Hee-Joong Kim1,3, Tae-Kyoung Kim1, Youn-Kwon Kim2 |
1Hansu Technical Service R&D Center
2K-water Institute
3Sungkyunkwan University |
| Corresponding author |
Youn-Kwon Kim ,Tel: 042-870-7554, Fax: 042-870-7549, Email: kyk90@kwater.or.kr
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Received: December 14, 2015; Revised: January 21, 2016; Accepted: February 22, 2016. Published online: March 31, 2016. |
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| ABSTRACT |
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Biogas yields point of view, the possibility of reusing excess sludge treated by thermal pretreatment for the purpose of improving the efficiency of the anaerobic digestion process has been investigated in recent year. Thermal pretreatment technology was considered as a pretreatment technique to improve excess sludge properties because of the solubilization of particulate organics. As a view point of sludge reduction and recycle, however, many researchers focused on the ability of particulate hydrolysis and COD solubilization under a high temperature, and few reports have addressed on the physical/chemical characteristics changing. This research was performed to evaluate the effects of a various temperature and chemical additives on carbon formation and fractionation in treated slurry from thermal pretreatment. Based on the results, it was revealed that oxidants injection and temperature changing have significantly caused the change of carbon fractions in slurry from thermal pretreament. Especially, it was considered that the efficiencies of particle hydrolysis increased with the increase of the reaction temperature. Low molecular weight(Mw < 350 g/mol) organic carbon formation increased with the increase of oxidants injection. It was expected that results of this research will provide an overview of the characteristics of thermal pretreatement for excess sludge reduction and recycle. |
| Key Words:
Thermal Pretreatment, Carbon Formation, Fractionation, LC-OCD, Sludge Reduction |
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